ok im looking to do the 16g upgrade, my question is what all would i need to use the big 16g as far as ,inj size,the walbro 255?, bigger tmic or fmic?, is that all or is there some other smaller things that are needed. i have ths sti tranny waitin to go in. I have tbe w/ cobb ap. I plan on getting a tune after all this is done. Oh and what do yll think my whp roughly be.

Yep, all the previous advice is sound. big 16? eh...probably close to 300whp. It all depends on the tune and other factors. So, don't get to caught up in the number. It should be enough to make you happy. If that's the ballpark your shooting for. Good luck and let us know how it turns out.

Edit: the gauges would help more if your trying to opensource tune it/log it. Unless you like to keep a eye on things. You don't really need any of the above if your taking it to get protuned.

oh yea duhi didnt eve think about the tune and not needing the guages, but those numbers are good enough. I will be posting over the next 3 months on howmy 16g up grade is going. Thx for all the help guys.